✦ LIBER ✦

Microwave Assisted Synthesis of Yb:Y2O3 Based Materials for Laser Source Application

✍ Scribed by Anna Luisa Costa; Marina Serantoni; Magda Blosi; Elisa Mercadelli; Laura Esposito; Andreana Piancastelli; Alessandra Sanson

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 402 KB
Volume: 12
Category: Article
ISSN: 1438-1656
DOI: 10.1002/adem.200900272

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Yb:Y~2~O~3~ submicrometric particles were synthesized through co‐precipitation of Yb and Y nitrate in water. Microwave heating and controlled release of ammonia through urea decomposition at reaction temperature leaded to the formation of disaggregated, monosized spherical particles of carbo‐hydroxy‐nitrate precursors. Pure crystalline Yb:Y~2~O~3~ powder that preserved the described morphology was obtained after calcination in air at 800 °C for 30 min. This powder mixed with commercial alumina powder was used to produce transparent Yb:YAG ceramics. Improved properties in terms of powder morphology and reactivity were presented in comparison with powders obtained by traditional heating.

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